Sterilizing device



L. H. ALLEN.

STERILIZING DEVICE. APPLICATION FILED Ffm-14.1919.

1, 348, 8 37 Patented Aug. 10, i920.

Q L .a

INVENTOR.

A TTORNE Y.

vto use water, which is heated UNITED STATES PATENT OFFICE.

H. ALLEN, 0F WEST SPRINGFIELD, MASSACHUSETTS.

'STERILIZING DEVICE.

Sterilizin' Devices of which the followinor 7 D Ais a specification. i

bly invention relates to improvements in. sterilizing devices in which asuitable inclos-v ing chamberY is provided for receiving the articles tobe sterilized. This chamber lis designed to receive a suitableframe-work for holding the articles. One vof the important features ofmy improvement is locating the frame-work and the articles directly inthe chamber -which contains the sterilizing fluid. In the presentinvention it is designed by means of a suitable burner to convert itinto steam. Suitable means is also provided for allowing the water toenter the chamber and for drawing off the same after the sterilizing isconipleted.

One of the objects of my invention is to provide a device forsterilizing glasses which are used by the public at soda water fountainsin drug stores. It is desirable to provide suitable means for readilyinserting and removing the glasses and at the same time to prevent thesteam from escaping into the room. Suitable means is provided forindicating the temperature, pressure, and a safety valve to avoidexplosions. I attain these objectsby means of the mechanism shownl inthe accompanying drawings in which the figure shown is a verticalsectional view taken on a plane passing through the axis of thesterilizing device, and showing the interior construction with thebasket for supporting the glasses, the cover, the inlet and draw-offpipes and the means for forcing the cover to its seat.

`eferring to the drawing in detail: 1 designates the container, orchamber having the curved bottom portion 2 for receiving the waterindicated'at 3 in the bottom portion, which is to be converted intosteam. This container is supported by means of the lugs 4 and 5 on thecasing 6, in the lower portion of which is located the gas burner 7. 8designates a pipe for supplying water to the chamber 2 which isconnected to the boss 9 that communicateswith the interior pory tion bymeans of the space 10. 11 designates Specification of Letters Patent.

Statesl of America, re-

of Hampden and Oom- 34 in order to prevent the steam Patented Aug. w1o,1920.

Application filed February 14, 1919. Serial 'No. 276,907.

a shut-offvalve in the pipe 8. 12 is a drain pipe for drawing off thewater and steam,

froin the chamber. 13 is a shut off valve therein. 14 designates abasket-like membei' for receiving the glasses 15 to be sterilized. Thismember preferably is made from thin metal as brass orcopper and is sup,`portedin the container 1 by means of the r rim or bead resting on thelugs, 1G. The

bottom of the member14 is perforated as shown at 17 to permit the steamto readily enter the space in which the glasses are located. The steamcan also pass above the glasses as readily understood. s

The chamber 1 is closed at its top by means of the cover 18, which isformed with a chambered portion 19 having the packing 2O therein. Thiscover is raised andr lowered by means of the bolt 21, which has athreaded Yconnection 22 with the supporting piece 23,

whereby when the bolt 21 is rotated by means of the handle 24, the cover18 may be raised or lowered as desired. The lower end of the bolt 22, itwill be observed, is formed with a head 25, which is engaged bythe gland26, which is screwed into a threaded recess in the cover. Thisconstruction permits the bolt 21 to turn freely with relation to theoever. The cover is preferably made arch-shaped, as shown, for thepurpose of strength.l The part 23 is also mace archn shape as shown, andpreferably concentric with the cover. This part 23 is pivotallyconnected to a suitable pin 27, which is supported by the container 1.The'hub part 2S of thepart 23 turns on the pin 2T; the other end of thepart 23 is suitably secured to a pin 29 when the cover 18 is closed. Asuitable pressure and temperature gage is shown at 30 and 31respectively, and a safety valve or blow off at 32. ln order to permitthe external air to enter when the blow-off Valve 13 is opened, to allowthe water and steam to escape a suitable pipe connection 33 is shownwhich is controlled by the hand wheel escaping into the room when thecover 13 is opened.

One of the advantages of my invention is in making the bottom part ofthe container 1 concave in order that a small quantity of water may beused whereby the same can be converted into steam in a comparativelyshort space of time, once pass upward through the openings 17 into thereceptacle 14 which receives the glasses 15. It will be seen that myimproveand the steam will atl have been made andl ,do notV thereforeclaimV Y such devices.

-It is to be understood that the. form 'of the containeris not limitedto'that shown in the drawings, as other forms suitable for the purposemay be used without departing Y from the spirit'andV scope ofmy'invention.

--sterilizing vapor isplaced andthere evapor-V Whatv I claim is r l. 'In'a sterilizingv device-fin which the steam 'is used as the'sterilizingagent, the

combinationoia container having la .curved bottom in which lthe liquidto supply the ated vb v'heat appliedtofthe basin, a cover for thecontainer, spaced vlugs onl the inside surface ofthe container tosupport abasketlike member to vreceive-the articlestoy bester r jilized,said member having closed sides, an

open top anda perforated bottom lto permit the vaporV from the liquid-to pass directly into lsaid `member and come in contact withv thearticles to be sterilized and to pass-up 2. A sterilizing devicecomprising, in combinatlon, acontainer having a curved bottom,orreceiving a sterilizing liquid, the lowermost portion having a hollowprojection communicating with the interior of the con- "tainer, Apipesconnected with said projection for supplying and draining off theliquid, an inclosingcasing for supporting the container, adevice'within'the casing for heating'theliquid in the container,theinner surface of the container having spaced lugs,

a 'receptacle Jfior receiving the articles to be sterilized andsupported-on Vthe lugs, said receptacle having closed sides, aperforated bottom and an open top to permit lthe vapor from the heatedliquid in the` container to pass up around the sides of the containerand vinto the'top 01E-the same, a cover Vfor the container, and meansvto .permit the eX- ternal air to lenter the vcontainer when lthe liquidis drawn off, whereby the hot vapor and `liquid will escape r`from thecontainer before .the cover is removed. i

LEWIS H. ALLEN.

